Custom-made ring molds and runner sleeves for pellet presses in the feed and wood pellet industry.
GRAF GmbH
Heddesheim (Headquarters, production in two plants)New on Amplifa
About GRAF GmbH
GRAF GmbH, based in Heddesheim (Baden-Württemberg), is a specialized manufacturer of precision press molds for pellet presses. Since 1966, the company has been manufacturing custom-made ring molds and runner sleeves for the feed and wood pellet industry. The manufacturing process includes deep-hole drilling of the molds, hardening, and grinding, so that the products are immediately ready for use. Runner sleeves are manufactured punched, corrugated, or in special versions; GRAF also supplies spare parts such as wear rings, reinforcement rings, and complete runners, as well as repair and refurbishment services for worn molds. With over 40 employees in two plants, the company serves customers in more than 50 countries worldwide. Proprietary machine developments and strict quality controls ensure roundness accuracy, long service life, and vibration-free operation of the press molds.
- Site
- Heddesheim
- Processes
- Deep-hole drilling of ring molds, Hardening, Manufacturing of runner sleeves (punched, corrugated, special versions), Refurbishment/repair of worn molds, Production of spare parts: wear rings, reinforcement rings, complete runners, Consultation, Supply/Annual requirements planning, Repair/refurbishment of worn molds
- Materials
- Steel (unspecified type), Deep-hole drilling, Hardening / Heat treatment
- Certificates
- Strict quality control in manufacturing
- Founded
- 1966
- Employees
- 11–50 (LinkedIn);
- Industries
- Feed Industry, Wood Pellet Industry, Mechanical Engineering
- 01
Consultation and Inquiry
- 02
Deep-hole drilling of ring molds
- 03
Hardening (heat treatment)
- 04
Grinding
- 05
Quality control
- 06
Delivery and worldwide service (repair/refurbishment)
Manufacturing Process
Steel (unspecified type)
Material for ring molds and runner sleeves, deep-hole drilled and hardened.
Deep-hole drilling
Drilling process for pin channels in ring molds with highest roundness accuracy.
Hardening / Heat treatment
Hardening of molds for long service life and wear-resistant operation.
Locations
Heddesheim
DEHeadquarters and production (two plants)
- Materials
- Steel (unspecified type)
- CNC machines for deep-hole drilling and grinding of ring molds
Products
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Deep-hole drilling of ring moldsMachining | – | – | – | – | Steel (unspecified type) |
| HardeningHeat treatment | – | – | – | – | Steel (unspecified type) |
| Manufacturing of runner sleeves (punched, corrugated, special versions)Machining | – | – | – | – | Steel (unspecified type) |
| Refurbishment/repair of worn moldsSurface | – | – | – | – | – |
| Production of spare parts: wear rings, reinforcement rings, complete runnersMachining | – | – | – | – | – |
Additional services
Quality
Proprietary machine developments, state-of-the-art manufacturing, and strict quality controls ensure high roundness accuracy, long service life, and immediately ready-to-use products (Plug'n'Play).
| Evidence | Heddesheim |
|---|---|
| Strict quality control in manufacturing |
History
- 1966
Founding of GRAF GmbH; operating with molds and runner sleeves for pellet presses since then.
Commissioning of a second plant in Heddesheim; over 40 employees in two plants.